Hello, thinking of purchasing one of these programs since they're on sale, but only one. I have 2 questions, If anyone has purchased both of these programs, which do you like the best? and does anyone think it's necessary to start with the first one, or could I just purchase Fit round 2, I was thinking maybe they incorporated newer routines in FB Fit round 2, just my thoughts but wanted others opinions on these 2 programs. Thanks